| /* |
| * Copyright (c) 2006, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6417044 |
| * @summary Test that a failing MBean registration does not lead to a deadlock |
| * @author Eamonn McManus |
| * |
| * @run main PostRegisterDeadlockTest2 |
| */ |
| |
| import javax.management.*; |
| |
| public class PostRegisterDeadlockTest2 { |
| private static String failed; |
| |
| public static interface EmptyMBean {} |
| |
| public static class Empty implements EmptyMBean, MBeanRegistration { |
| public ObjectName preRegister(MBeanServer mbs, ObjectName on) { |
| this.mbs = mbs; |
| this.on = on; |
| return on; |
| } |
| public void postRegister(Boolean done) { |
| Thread t = new Thread() { |
| public void run() { |
| if (!mbs.isRegistered(on)) |
| failed = "Not registered!"; |
| } |
| }; |
| t.start(); |
| try { |
| t.join(5000L); |
| } catch (InterruptedException e) { |
| failed = "Interrupted: " + e; |
| } |
| if (t.isAlive()) |
| failed = "Deadlock detected"; |
| } |
| public void preDeregister() {} |
| public void postDeregister() {} |
| |
| private MBeanServer mbs; |
| private ObjectName on; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| MBeanServer mbs = MBeanServerFactory.newMBeanServer(); |
| ObjectName on = new ObjectName("a:b=c"); |
| mbs.registerMBean(new Empty(), on); |
| try { |
| mbs.registerMBean(new Empty(), on); |
| throw new Exception("FAILED: did not get expected exception"); |
| } catch (InstanceAlreadyExistsException e) { |
| System.out.println("OK: got expected exception"); |
| } |
| if (failed != null) |
| throw new Exception("FAILED: " + failed); |
| System.out.println("TEST PASSED"); |
| } |
| } |